Title :
Multi-Channel Readout ASIC for ToF-PET
Author :
Fischer, Peter ; Peric, Ivan ; Ritzert, Michael ; Solf, Torsten
Author_Institution :
Inst. of Comput. Eng., Mannheim Univ.
fDate :
Oct. 29 2006-Nov. 1 2006
Abstract :
An architecture for the simultaneous measurement of arrival time and amplitude of PET scintillation signals in a multichannel chip has been developed. The design of a first prototype chip is described in this paper. An intrinsic time resolution of 105 ps (FWHM) channel-to-channel has been observed with test pulses. In a PET setup with two LYSO crystals equipped with photomultipliers, the coincidence time resolution is 330 ps (FWHM). An energy resolution of 13% could be obtained for 511 keV signals from a Na-22 source using the on-chip charge integrator.
Keywords :
application specific integrated circuits; photomultipliers; positron emission tomography; readout electronics; scintillation counters; 330 ps; 511 keV; LYSO crystals; Na-22 source; PET scintillation signal amplitude; PET scintillation signal arrival time; ToF-PET; coincidence time resolution; multichannel chip; multichannel readout ASIC; on-chip charge integrator; photomultipliers; prototype chip; Application specific integrated circuits; Crystals; Energy resolution; Photomultipliers; Positron emission tomography; Prototypes; Semiconductor device measurement; Signal resolution; Testing; Time measurement; QDC; TDC; ToF-PET;
Conference_Titel :
Nuclear Science Symposium Conference Record, 2006. IEEE
Conference_Location :
San Diego, CA
Print_ISBN :
1-4244-0560-2
Electronic_ISBN :
1095-7863
DOI :
10.1109/NSSMIC.2006.354423
